Live opening · Posted 1 day ago

Applied Formal Methods Researcher (Lean 4)

Alignerr · Birmingham, England, United Kingdom (Remote)
Linkedin Yes
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At a glance

The key details from the original listing.

Posted 1 day ago
CompanyAlignerr
LocationBirmingham, England, United Kingdom (Remote)
Salary$170/hr - $200/hr
Work modeYes
SourceLinkedin
Listed1 day ago

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About the role

Description supplied by the original job listing.

About The Role
What if your deep mathematical training could directly shape how AI understands and reasons about formal proof? We're looking for Applied Formal Methods Researchers to translate rigorous human mathematical arguments into machine-verifiable Lean 4 formalizations — working at the very frontier of what automated reasoning can express and achieve.
This is a fully remote, flexible contract role designed for mathematicians who love precision, structural elegance, and the intellectual challenge of bridging human intuition with machine-verifiable logic.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You'll Do
Translate informal mathematical proofs into Lean 4 (and related proof systems) with an emphasis on clarity, structure, and correctness
Analyze proofs across domains — identifying gaps, hidden assumptions, and formalizable sub-structures
Construct formalizations that test and expose the limits of existing proof assistants, especially where automated tools struggle or fail
Collaborate with researchers to design, refine, and evaluate strategies for improving formal verification pipelines
Develop readable, reproducible proof scripts aligned with mathematical best practices and proof assistant idioms
Provide guidance on proof decomposition, lemma selection, and structuring techniques for formal models
Investigate breakdowns in automated provers and articulate why they occur — complexity, missing lemmas, insufficient libraries, and more
Formalize classical proofs and compare machine-verifiable structures against textbook arguments
Who You Are
Hold a Master's degree or higher in Mathematics, Logic, Theoretical Computer Science, or a closely related field
Have a strong foundation in rigorous proof writing across areas such as algebra, analysis, topology, logic, or discrete mathematics
Have hands-on experience with Lean (Lean 3 or Lean 4), Coq, Isabelle/HOL, Agda, or comparable formal proof systems — Lean 4 strongly preferred
Genuinely enthusiastic about formal verification, proof assistants, and the future of mechanized mathematics
Able to translate informal mathematical arguments into clean, structured, machine-verifiable proofs
Naturally detail-oriented, precise, and comfortable working independently
Nice to Have
Familiarity with type theory, the Curry-Howard correspondence, and proof automation tools
Experience with large-scale formalization projects such as Mathlib
Exposure to theorem provers where automated reasoning frequently fails or requires manual scaffolding
Prior experience with data annotation, data quality evaluation, or AI training workflows
Strong communication skills for explaining formalization decisions, edge cases, and reasoning strategies
Why Join Us
Work at the cutting edge of AI research alongside world-leading research labs
Fully remote and flexible — work when and where it suits you
Freelance autonomy with the structure of meaningful, intellectually stimulating work
Gain direct exposure to how advanced AI models are trained and evaluated
Contribute to a field that is actively redefining the boundaries of mathematical reasoning and AI capability
Potential for ongoing work and contract extension as new projects launch

Work arrangement
Yes

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